2Peter 1:5 says, "So don't lose a minute in building on what you've been given, complementing your basic faith with good character, spiritual understanding, alert discipline, passionate patience, reverent wonder, warm friendliness, and generous love, each dimension fitting into and developing the others." Verse 9 says, "Without these qualities you can't see what's right before you, oblivious that your old sinful life has been wiped off the books." What Peter is saying here is that after you become a Christian, you can't just stay the way you are. It is important to keep striving to be better in all the areas that he mentioned, or you will not be able to see the evidence of the Holy Spirit's work in your life. You won't be able to see that you are no longer a slave to sin. Jesus died to save us from sin - we don't have to do it anymore!